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DC Generators

DC Generators
A triplex wave winding will have parallel paths.

6
None of the listed here
2
4

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DC Generators
In a short shunt compound wound generator, the shunt field is connected in parallel with

Series field
Series combination of armature and series field
Armature
Parallel combination of armature and series field

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DC Generators
In a D.C. generator the ripples in the direct e.m.f. generated are reduced by

Using conductor of annealed copper
Using commutator with large number of segments
Using equalizer rings
Using carbon brushes of superior quality

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DC Generators
Brushes of D.C. machines are made of

Hard copper
Soft copper
All of above
Carbon

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DC Generators
In a long shunt compound wound generator , the shunt field is connected in parallel with

Series field
Armature
Parallel combination of armature and series field
Series combination of armature and series field

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DC Generators
Open circuited armature coil of a D.C. machine is

None of these
Identified by the scarring of the commutator segment to which open circuited coil is connected
Indicated by a spark completely around the commutator
Both of the listed here

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